Raise MSRV to 1.63

Author: str4d

CHANGELOG.md

@@ -7,7 +7,7 @@ and this project adheres to Rust's notion of
 
 ## [Unreleased]
 ### Changed
-- MSRV is now 1.60.0.
+- MSRV is now 1.63.0.
 
 ## [0.5.1] - 2023-03-02
 ### Fixed

Cargo.toml

@@ -9,7 +9,7 @@ authors = [
     "Jack Grigg <[email protected]>",
 ]
 edition = "2021"
-rust-version = "1.60"
+rust-version = "1.63"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/zcash/pasta_curves"
 documentation = "https://docs.rs/pasta_curves"

README.md

@@ -14,7 +14,7 @@ If you want to propose "substantial" changes to this crate, please
 
 ## Minimum Supported Rust Version
 
-Requires Rust **1.60** or higher.
+Requires Rust **1.63** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be done with a
 minor version bump.

rust-toolchain.toml

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "1.60.0"
+channel = "1.63.0"
 components = [ "clippy", "rustfmt" ]

src/arithmetic/curves.rs

@@ -64,6 +64,7 @@ pub trait CurveExt:
     ///     (g * x + &(h * r)).to_affine()
     /// }
     /// ```
+    #[allow(clippy::type_complexity)]
     fn hash_to_curve<'a>(domain_prefix: &'a str) -> Box<dyn Fn(&[u8]) -> Self + 'a>;
 
     /// Returns whether or not this element is on the curve; should